<template>
  <el-form ref="deptForm" :model="form" :rules="rules" label-width="120px">
    <el-form-item label="部门名称" prop="name">
      <el-input v-model="form.name" style="width:80%" placeholder="1-50个字符" />
    </el-form-item>
    <el-form-item label="部门编码" prop="code">
      <el-input v-model="form.code" style="width:80%" placeholder="1-50个字符" />
    </el-form-item>
    <el-form-item label="部门负责人" prop="manager">
      <el-select v-model="form.manager" style="width:80%" placeholder="请选择">
        <el-option
          v-for="item in list"
          :key="item.id"
          :value="item.username"
          :label="item.username"
        />
      </el-select>
    </el-form-item>
    <el-form-item label="部门介绍" prop="introduce">
      <el-input v-model="form.introduce" style="width:80%" placeholder="1-300个字符" type="textarea" :rows="3" />
    </el-form-item>
    <el-form-item>
      <el-button type="primary" size="small" @click="hSubmit">确定</el-button>
      <el-button size="small" @click.native="hCancel">取消</el-button>
    </el-form-item>
  </el-form>
</template>

<script>
import { getEmployeeSimple } from '@/api/employees'
import { addDepartments, getDepartmentsDetail, putDepartments } from '@/api/departments.js'
export default {
  props: {
    id: {
      type: String,
      required: true
    },
    isEditor: {
      type: Boolean,
      required: true
    },
    originList: {
      type: Array,
      required: true
    }
  },
  data() {
    // 校验编码在项目中是否重复
    const validCode = (rule, value, callback) => {
      // console.log('validCode....', value)
      // value就是当前用户输入的编码，它不能与现有的编码数据（originList）重复
      // 如果重复，就验证不通过
      // if(value能与现有的编码数据（originList）重复) {
      // 1. 从originList（[{id, pid,name, code},{id, pid,name, code}]）中找出全部的编码数据
      let existCodeList = this.originList.map(item => item.code)
      if (this.isEditor) {
        // 把当前正在编辑的部门编号（this.id）排除在外
        existCodeList = this.originList.filter(item => item.id !== this.id).map(item => item.code)
        // 过滤掉当前的部门, map得到部门编号列表
        // console.log(this.isEditor, '123123')
      }
      // 2. 检查value 是否存在其中
      // if (existCodeList.includes(value)) {
      //   callback(new Error(`该部门编码:${value}已经存在,请重新输入`))
      // } else {
      //   callback()
      // }
      existCodeList.includes(value)
        ? callback(new Error(`该部门编码:${value}已经存在,请重新输入`))
        : callback()
    }
    // 校验部门名称在同级部门不能重复
    const validName = (rule, value, callback) => {
      // 找到当前点击的子部门
      let existNameList = this.originList.filter(item => item.pid === this.id).map(item => item.name)
      if (this.isEditor) {
        const pid = this.originList.find(item => item.id === this.id).pid
        existNameList = this.originList.filter(item => item.pid === pid).filter(item => item.id !== this.id).map(item => item.name)
      }
      // 判断当期那用户输入部门名称是否存在数组
      if (existNameList.includes(value)) {
        callback(new Error(`该部门名称:${value}已经存在,请重新输入`))
      } else {
        callback()
      }
    }
    return {
      form: {
        name: '', // 部门名称
        code: '', // 部门编码
        manager: '', // 部门管理者
        introduce: '' // 部门介绍
      },
      // 验证规则对象
      rules: {
        name: [
          { required: true, message: '部门名称不能为空', trigger: 'blur' },
          { min: 1, max: 50, message: '部门名称要求1-50个字符', trigger: 'blur' },
          { validator: validName, trigger: 'blur' }
        ],
        code: [
          { required: true, message: '部门编码不能为空', trigger: 'blur' },
          { min: 1, max: 50, message: '部门编码要求1-50个字符', trigger: 'blur' },
          { validator: validCode, trigger: 'blur' }
        ],
        manager: [
          { required: true, message: '部门负责人不能为空', trigger: 'blur' }
        ],
        introduce: [
          { required: true, message: '部门介绍不能为空', trigger: 'blur' },
          { min: 1, max: 300, message: '部门介绍要求1-300个字符', trigger: 'blur' }
        ]
      },
      list: [] // 保存负责人列表
    }
  },
  created() {
    this.loadEmployeeSimple()
    if (this.isEditor) { // 如果是编辑状态 触发函数实现编辑
      this.loadDepartmentsDetail()
    }
  },
  methods: {
    resetForm() {
      this.$refs.deptForm.resetFields()
    },
    // 获取部门详情数据
    async loadDepartmentsDetail() {
      try {
        const res = await getDepartmentsDetail(this.id)
        if (res.code === 10000) {
          // 将获取到的部门详情填充到表单
          this.form = res.data
        }
      } catch (error) {
        console.log(error)
      }
    },
    // 新增子部门
    async doAdd() {
      try {
        const res = await addDepartments({ pid: this.id, ...this.form })
        console.log('res,res', res)
        if (res.code !== 10000) return this.$message.error(res.message)
        this.$message.success(res.message)
        // 重新渲染页面 关闭弹层 子串父
        this.$emit('success')
      } catch (error) {
        console.log(error)
      }
    },
    // 获取部门负责人列表
    async loadEmployeeSimple() {
      try {
        const res = await getEmployeeSimple()
        // console.log('res,res', res)
        this.list = res.data
      } catch (error) {
        console.log(error)
      }
    },
    // 实现编辑部门
    async doEditor() {
      try {
        const res = await putDepartments(this.form)
        if (res.code !== 10000) return this.$message.error(res.message)
        this.$message.success(res.message)
        // 重新渲染页面 关闭弹层 子串父
        this.$emit('success')
      } catch (error) {
        console.log(error)
      }
    },
    // 确定
    hSubmit() {
      // 兜底校验
      this.$refs.deptForm.validate((valid) => {
        if (!valid) return
        this.isEditor ? this.doEditor() : this.doAdd()
      })
    },
    // 取消
    hCancel() {
      this.$emit('close')
    }
  }
}
</script>

<style>

</style>
